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Knowledge, despite its subjectivity, is broadly used to describe facts, information and skills acquirable by humans. Despite the multidimensional nature of knowledge in itself, a person's knowledge is known to have bounds. An individual's knowledge set can be quantified as the set of facts or information that he/she has gained over time. When people collaborate, the resulting knowledge set represents the union of their individual knowledge sets. Collaboration is seen in every aspect of life, be it trade, music, education or military. Research and innovation, these days, thrive on collaboration extensively.

     We study the collaborative accumulation of knowledge with Wikipedia as our testbed. Wikipedia is a wiki-based online encyclopedia which allows people to add, delete or edit content thus allowing them to augment their knowledge sets with the rest of the world. With 4,450,221 (as on February 13, 2014) articles alone in English version of Wikipedia and its free editing policy, Wikipedia is the best available platform to study the patterns of collaborative knowledge accumulation. The process of knowledge accumulation in Wikipedia is analogous to Darwin's theory of Evolution. Here, the editors select the best available options (information) while the rest gets wiped out. In our study, we draw a parallel between the collaboration evidently found in our day to day life with that of what one can observe in the behind-the-scenes of Wikipedia. Further, using the case study of Wikipedia, we quantify the growth rate of information as the number of collaborators increase. 


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